Ciguatera poisoning in Rarotonga, southern Cook Islands
Ciguatera poisoning in Rarotonga, southern Cook Islands
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DOI：
10.1016/j.hal.2010.11.005
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发表时间：
2011-05-01
期刊：
影响因子：
6.6
通讯作者：
van Woesik, Robert
中科院分区：
文献类型：
--
作者：
Rongo, Teina;van Woesik, Robert
中太平洋的雪卡毒素中毒比地球上任何其他地方都要多。在这里，我们测试了两个相互竞争的假设，概述了雪卡毒爆发的主要原因：（1）“新表面假说”和（2）“气候振荡假说”。我们的研究结果表明，在拉罗汤加，从1994年到2010年，每年每10，000人中的雪卡毒素中毒发生率为204至1，058。我们发现，拉罗汤加岛最宽的珊瑚礁引发了最多的雪卡毒素中毒病例，但没有发现雪卡毒素爆发和珊瑚礁暴露之间的关系。我们还发现，雪卡毒素中毒事件与（i）太平洋十年涛动的正相，（ii）厄尔尼诺年，（iii）频繁扰动的时期之间存在很强的相关性。然而，大多数扰动发生在上述气候阶段。这项研究将这两个相互排斥的假设联系起来。此外，正如“气候振荡假说”所预测的那样，2010年太平洋正经历太平洋十年期振荡的负阶段，拉罗汤加岛报告的雪卡毒中毒病例很少。(C)2010 Elsevier B.V.保留所有权利。
The central Pacific Ocean has arguably more ciguatera poisoning than any other place on earth. Here we tested two competing hypotheses that outline the primary causes of ciguatera outbreaks: (1) the 'new surface hypothesis' and (2) the 'climate oscillation hypothesis'. Our findings indicated that in Rarotonga, from 1994 to 2010, the annual incidence of ciguatera poisoning ranged from 204 to 1,058 per 10,000 population per year. We found that the widest reefs of Rarotonga elicited the most cases of ciguatera poisoning, but found no relationship between ciguatera outbreaks and reef exposure. We also found strong correlations between cases of ciguatera poisoning and (i) the positive phase of the Pacific Decadal Oscillation, (ii) El Nino years, and (iii) periods with frequent disturbances. Yet, most disturbances occurred during the above-mentioned climate phases. This study links the two supposedly, mutually exclusive hypotheses. Moreover, as predicted by the 'climate oscillation hypothesis', the Pacific Ocean is now, in 2010, experiencing a negative phase of the Pacific Decadal Oscillation, and Rarotonga is reporting few cases of ciguatera poisoning. (C) 2010 Elsevier B.V. All rights reserved.